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make aggregate_sum/average compatible with pymongo 3.x

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This commit is contained in:
Stefan Wojcik 2015-06-08 13:46:19 -07:00
parent dd095279c8
commit 1233780265
1 changed files with 14 additions and 4 deletions
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18
mongoengine/queryset/base.py
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@ -1261,8 +1261,13 @@ class BaseQuerySet(object):
{ '$match': self._query },
{ '$group': { '_id': 'sum', 'total': { '$sum': '$' + field } } }
])
if result['result']:
return result['result'][0]['total']
if IS_PYMONGO_3:
result = list(result)
if result:
return result[0]['total']
else:
if result['result']:
return result['result'][0]['total']
return 0
def average(self, field):
@ -1333,8 +1338,13 @@ class BaseQuerySet(object):
{ '$match': self._query },
{ '$group': { '_id': 'avg', 'total': { '$avg': '$' + field } } }
])
if result['result']:
return result['result'][0]['total']
if IS_PYMONGO_3:
result = list(result)
if result:
return result[0]['total']
else:
if result['result']:
return result['result'][0]['total']
return 0
def item_frequencies(self, field, normalize=False, map_reduce=True):